I'm looking for some FMJ or TMJ 357 SIG loads. I doubt these will be the first off the press though
This business is definitely an all or nothing start-up. It of course can be done in stages (adding another caliber for each stage), but the structure must be there from day one. A well funded and thought-out ammunition manufacturing outfit would do well in the northeast.
Here are the nuts:
Besides the staffing, manufacturing equipment, FFL Type 6 and state permits, you will need to find a zoned facility, insurer, bonds, city waivers, etc. Ammo margins are razor thin and the sunk costs are huge. To make money or break even, volume must be significant from day 1. This means equal force put on sales vs. manufacturing. Custom stamped cases will require some serious investment and hopefully the 1st production run is sold out before the cases even arrive. Also... remember in pricing that the federal excise tax is 11% off the top of my head.
Spend some time banging around a business plan to calculate everything down to the penny. Then, double you expenses, 1/2 you projected net, and run those numbers. If the plan is really well thought out, a lack of start-up funding is easily managed. I suspect the 1st load off the line will cost you between $250K and $400K (if you purchase or build a facility). If you need any help on the start-up, planning, outside-investment, and/or legal end of things, let me know.